Post for jogging machines



March 3, i942. w. H. KUSHERA POST FOR JOGGING MACHINES Filed Dec. 14,1940 HHHHHHHIII Patented Mar. 3, 1942 UNITED STATES PATENT OFFICE POSTFOR JOGGDTG MACHINES William H. Kushera, New York, N. Y., assignor toFred M. Brackett, Topeka, Kans.

Application December 14, 1940, Serial No. 370,170

Claims.

This invention relates to jogging machines for straightening sheets in astack, and more particularly to an improvement in the jogging machinedescribed in copending application Serial No. 331,994, filed April 27,1940. In the machine described, I find a tendency for the edges of thesheets to work up or down the abutment posts during the agitating orvibrating motion of the table.

It is, therefore, the principal object of the present invention toprovide guide or abutment posts with an improved means for preventingdeflection of the edges of the sheets thereon during actuation of thetable.

In accomplishing this and other object of the invention, as hereinafterpointed out, I have provided improved structure, the preferred form ofwhich is illustrated in the accompanying drawing, wherein:

Fig. 1 is a perspective View of a sheet jogging machine equipped withguide posts constructed in accordance with the present invention.

Fig. 2 is an enlarged fragmentary section of the table illustrating oneof the posts.

Fig. 3 is a vertical section through a portion of the table and a guideor abutment post carried thereby.

Fig. 4 is a plan view of the lower or pocket forming corner of the tableinto which the sheets are jogged and showing the posts in cross-section.

Fig. 5 is a fragmentary perspective section of the lower end of one ofthe posts.

Referring more in detail to the drawing:

I designates a jogging machine of the character disclosed in the abovementioned application, and which includes a base 2 having sufiicientweight to provide a stable support for the machine and so that theinertia thereof is sufi'iciently great to avoid transmission ofvibrations to the building in which the machine is housed.

Extending upwardly from the base are sockets 3 and 4, mounting legs 5and 6 which carry the jogging table, later described. The upper ends ofthe posts are arranged to trunnion and clamp a table supporting frame 1in an inclined position by clamp screws 8.

The table 9 is supported above the frame, and in spaced relationtherewith by means of flat leaf springs l0, arranged with the fiat sidesthereof in planes extending transversely of the axis of the clamp screwsso that the table is adapted for vibration transversely of thetrunnioning axis or the angle of inclination of the table. The table 9includes a rectangular frame ll, arranged parallel with the frame 1, butturned at a substantially 45 angle therewith so that a corner thereof ispositioned at a lower elevation to form an angular shaped pocket havingits median line extending transversely of the direction of vibration soas to joggle the sheets in a stack from side to side until they engagethe faces of the guide posts [2, whereupon all the sheets are brought inregistry with each other. The table is vibrated by mechanism supportedon the frame I and connected through eccentrics as described in detailin the above mentioned application.

With the exception of the posts, the structure thus fardescribed formsno part of the present invention, and operates satisfactorily, however,when relatively thin sheets are jogged on the machine there is atendency for the edge thereof to work up or down the faces of the posts,and to overcome this difiiculty I have provided posts of improvedconstruction as best shown in Figs. 2 to 5, inclusive.

Each post includes a channel l3 having a flat web I4 arranged parallelwith the sides of the table and having laterally and outwardly directedflanges I5 and [B to impart rigidity to the posts. The front corneredges of the channels are preferably bevelled as at I 1, and the rearedges of the flanges are rounded as at l8 to avoid cutting a sheathingmaterial placed thereover. The bevels preferably terminate above thelower ends of the posts to provide flat faces [9 which are clamped tothe sides of the table by fastening devices 20. The posts are preferablyprovided at their ends with notches 2| adapted to slide over the shanksof the fastening devices so as to effect ready removal and applicationof the posts.

Sleeved over each post is a tubular sheath 22 of crimpled material, forexample rubber having a roughened exterior surface, or crepe rubberhaving crimps 23 whereby the portions of the heath extending across theface of the webs and engageable with the sheets present non-continuousslightly irregular projecting surfaces to provide the necessary frictionfor resisting upward or downward movement of the sheet edges when thetable is being vibrated.

While various materials may be used in forming the sheaths, I find thatcrepe rubber is most suitable in that the crinkles provide broken ridgesof sufiicient depth to engage and prevent the edges of the sheets fromworking up or down the posts. The sheets therefore retain perfectregistry when once they have engaged the posts.

From the foregoing it is obvious that I have provided a simple andreliable means for keeping and non-continuous contact edges forengaging,

edges of the sheets jogged on the machine.

2. In a jogging machine, a sheet abutment member having a crepe rubberface for engaging.

the edges of the sheets jogged on the machine.

3. A jogging machine including, a tablehaving sheet abutment posts fixedto the table, and sheaths covering said posts formed of. resilientmaterial having a crimped surface adapted 'to contact the edges ofsheets applied on said table.

4. A jogging machine including, a tablehaving.

sheet abutment posts fixed to the table, and crepe rubber sheathscoveringsaid posts.

5. A post for jogging machines including, a channel member, and atubular sheath clothed on said member, said sheath being formed ofresilient material having a crimped. surface.

6. A post for jogging machines including, a

channel member, and a tubular crepe rubber sheath clothed on saidmember.

7. In a jogging machine having a table, sheet abutment members havingcrimpled faces with the crimps extending in irregular directions withrespect to the plane of said table for engaging edges of the sheetsjogged on the machine.

8. In a jogging machine having a table, sheet abutment members hayingcrimped. faces with the-crimps irregularly arranged and extending inirregular directions with respect to the plane of said table andengaging edges of the sheets jogged on the machine.

9. In a jogging machine, a substantially rectangular table inclined in adirection of a corner thereof, posts projecting upwardly from the sidesof the table forming said corner, and resilient facingson said postsadapted to contact adjacent edges of sheets to be jogged on said table.

10-. In a-jogging machine, a substantially rectangular table inclined ina direction of a corner thereoflposts projecting upwardly from the sidesof thet'able forming said -corner,- and resilient;

sheath-like bands on said posts.

WILLIAM H. KUSHERA.

